today at the white house. saying that his first political act was to participate in the anti-apartheid movement and what nelson mandela meant to him. but before nelson mandela's death was announced today, he spent over an hour with you and college students in a rare, unprecedented interview in town hall at american university. tell us about it. it's going to air after the show tonight. >> well, some of it was the usual kind of question you or i would put to him which is your concerns about government effectiveness, have you been able to keep prestige up there with the difficult rollout, how's your government management techniques going so far, is there still trust in government. the usual questions. but when he really came alive was when i asked him what about you and the pope. because the speech you gave yesterday on economic justice, mr. president, was so powerful and it was resonant of what the holy father has been saying in rome and dealing with people in poverty and getting out there and doing it and rubb